Home / 81,426.40-112,375.34-45,615.92

Finding the Fourth Proportional to 81,426.40, 112,375.34 and 45,615.92

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Solution

The fourth proportional to 81,426.40, 112,375.34 and 45,615.92 is: 62,953.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,426.40 : 112,375.34 = 45,615.92 : x
  2. Step 2: Convert to fraction form
    81,426.40/112,375.34 = 45,615.92/x
  3. Step 3: Cross multiply
    81,426.40x = 112,375.34 × 45,615.92
  4. Step 4: Simplify right side
    81,426.40x = 5,126,104,519.41
  5. Step 5: Solve for x
    x = 5,126,104,519.41/81,426.40
  6. Step 6: Final answer
    x = 62,953.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.